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Task Manager Shows 2 Out Of 4 Cores


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#1 DerekJeder

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Posted 03 February 2017 - 01:25 PM

My Asus Q552U laptop has only been showing 2 cores out of it's quad core in task manager. It has a quad core i7 6500 cpu. I've checked my computer's settings to make sure all 4 cores are enabled, my system information and drivers show 4 functioning cores, What's more, my UEFI Bios doesn't have an options for controlling cores. I tried uninstalling all 4 processor drives and using my integrated graphics, then restarting and it didn't help. I haven't been able to find any solution that will make all 4 cores show up in task manager. I appreciate any help you guys can give me :) 



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#2 Drillingmachine

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Posted 03 February 2017 - 01:37 PM

i7-6500U is dual core CPU.



#3 DerekJeder

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Posted 03 February 2017 - 01:58 PM

i7-6500U is dual core CPU.

You know, that might explain it XD I feel dumb now. Is there a reason why It says I have 4 processor drivers and 4 running processors in my system information, or is that a glitch or something? 

Edit: Nvm, it doesn't say 4 cores, it says 2 cores and 4 processors. But I still want to know why I have 4 drivers installed if you don't mind 


Edited by DerekJeder, 03 February 2017 - 02:00 PM.


#4 Drillingmachine

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Posted 03 February 2017 - 02:54 PM

It has 2 physical cores and 2 logical cores, that's 4 "total processors". That's why you have 4 drivers installed.



#5 DerekJeder

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Posted 03 February 2017 - 03:07 PM

It has 2 physical cores and 2 logical cores, that's 4 "total processors". That's why you have 4 drivers installed.

Ah, thank you! 



#6 hamluis

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Posted 03 February 2017 - 06:58 PM

FWIW:  I think your confusion arose from the fact that you seem to think that physical components are the only items for which "drivers" are necessary.  Not at all true...your AV program, your firewall, your video-editing program and various other non-hardware items...all use/need drivers.  That includes logical cores.

 

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#7 Platypus

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Posted 03 February 2017 - 07:26 PM

Processors equipped to run two independent threads per core use a technology called Simultaneous Multi Threading (SMT). Intel calls their implementation Hyper-Threading:

 

http://www.intel.com.au/content/www/au/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html

 

Each core has two execution units which share other processing resources, giving a useful performance improvement with the right applications. To use Hyper-Threading, the OS has to be operating in SMP (Symmetric Multi Processing) mode, which utilizes a driver for each execution unit, and Task Manager shows you the operating parameters of each processing unit.


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